Do you have the East Asian language pack installed, and the proper
Chinese PRC stuff selected? And the Advanced text services turned
off for the Hipihi shortcut?
There are instructions on my blog at http://suezannecbaskerville.wordpress.com
on the Hipihi page.
Eggy, you should also try Novoking, at Novoking.com. You can import
builds from Maya and 3D Studio Max in Novoking.